Table 4.

Sensitivity analysis for Estimating the association between medication use and vertebra BMD (mg/cm³)

	β (Se) †	95% CI	P-value
No NSAID or ASA use	Reference
ASA User (all)	0.59(1.69)	−2.72, 3.89	0.72
Regular use, low dose ASA	2.54(2.62)	−2.61, 7.68	0.33
Occasional use ASA	−2.41(3.50)	−9.28,4.47	0.49
Regular use, high dose ASA	1.03(2.01)	−2.92, 4.97	0.61
Non-selective NSAIDs use	−0.57(1.93)	−4.35, 3.21	0.77
Cox 2 selective NSAID use	6.58(2.93)	0.83, 12.33	0.02

^*Sensitivity analysis using stronger age adjustments, multiple imputation for missing values in BMD reads, and looking at other medications in the non-steroidal anti-inflammatory drug (NSAID) class.

Abbreviations: BMD, bone mineral density; CI, confidence interval; NSAID, non-steroidal anti-inflammatory drug; ASA, aspirin; Std, Standard

^†β stands for the absolute value change of thoracic BMD